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Community Water System · PWS HI0000348

Waiawa Correctional Facility

Pearl City, Hawaii 96782 - drinking water served from surface water sources to 444 people, tracked in EPA SDWIS and UCMR5.

444
People served
281
EPA violations
181
Health-based
Untested
UCMR5 result

The verdict

EPA records 281 drinking-water violations at Waiawa Correctional Facility, 64% of them health-based - above the Hawaii per-system average.

281
Total EPA violations on record
64%
Health-based (MCL / treatment failure)
444
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Waiawa Correctional Facility

Waiawa Correctional Facility is a state-owned community water system that delivers drinking water to 444 residents in Pearl City, Hawaii (Honolulu County) through 12 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 281 total violations for this system , of which 181 (64%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 73 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 171 violations (TT, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Hawaii, EPA tracks 137 public water systems serving 1,520,931 people, with 5,234 cumulative violations and 2,289 health-based violations on record. About 80% of systems in the state carry at least one violation, and state-wide the average per system is 38.2 violations. Statewide, 2 of 45 UCMR5-tested systems have reported PFAS detections (4.4%).

Waiawa Correctional Facility's 281 violations sit above the Hawaii average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
444
Total Violations
281
Health-Based Violations
181
Water Source
Surface Water

System Details

System Type
Community
Owner Type
State
Connections
12
County
Honolulu
School/Daycare
No
MCL Violations
6
Monitoring Violations
73
Treatment Tech Violations
175

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 171 2019
Interim Enhanced Surface Water Treatment Rule MR 52 2009
Surface Water Treatment Rule MR 15 2019
Coliform (TCR) MCL 6 1994
CYANIDE MR 6 2009
Interim Enhanced Surface Water Treatment Rule TT 4 2006
Coliform (Pre-TCR) Other 1 1987

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Waiawa Correctional Facility.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID HI0000348 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Hawaii Drinking Water Authority

Hawaii's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find HI regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2019 Surface Water Treatment Rule TT 171 SDWIS / HI0000348 / 0200
2019 Surface Water Treatment Rule MR 15 SDWIS / HI0000348 / 0200
2009 Interim Enhanced Surface Water Treatment Rule MR 52 SDWIS / HI0000348 / 0300
2009 CYANIDE MR 6 SDWIS / HI0000348 / 1024
2006 Interim Enhanced Surface Water Treatment Rule TT 4 SDWIS / HI0000348 / 0300
1994 Coliform (TCR) MCL 6 SDWIS / HI0000348 / 3100
1987 Coliform (Pre-TCR) Other 1 SDWIS / HI0000348 / 3000

How Waiawa Correctional Facility Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Waiawa Correctional Facility Hawaii avg Federal benchmark
Total violations 281 38.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 181 16.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 4.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 444 11,102 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 137 regulated public water systems in Hawaii.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Waiawa Correctional Facility water safe to drink? ▼
Waiawa Correctional Facility (PWS ID: HI0000348) has 281 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 444 people using Surface Water sources.
How many people does Waiawa Correctional Facility serve? ▼
Waiawa Correctional Facility serves 444 people in Pearl City, Hawaii. It is a State-owned system using Surface Water water sources with 12 service connections.
What type of violations does Waiawa Correctional Facility have? ▼
Waiawa Correctional Facility has 281 total violations: 181 health-based violations (MCL exceedances or treatment failures), 73 monitoring/reporting violations, and 175 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Waiawa Correctional Facility water? ▼
No PFAS testing data is available for Waiawa Correctional Facility under the EPA's UCMR5 monitoring program.
What water source does Waiawa Correctional Facility use? ▼
Waiawa Correctional Facility uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.